A Computational Study of the Effect of Intake Design on Volumetric Efficiency for Best Performance in Motorsport
This project was aimed at investigating the effect of velocity stacks on the intakes of internal combustion engines for motorsport applications. The intake systems in motorsport are predominantly fuel injection with a plate mounted for the stacks. Using Computational Fluid Dynamics software, the relationship between the stack length and power and torque delivery across the engine’s rev range was investigated and the results were used to choose the best option for its intended motorsport discipline. The test results are expected to vary with engine geometry and its natural manufacturer characteristics. The test was also relevant in bridging between computational data and real simulation as the results show flow, pressure and velocity readings but the behaviour of the engine is inferred from the nature of each test. The results of the data analysis were tested in a real-life simulation on a dynamometer to prove the theory of stack length on power and torque delivery, which helps determine the most suitable stack for the Vauxhall engine for rallying in the Caribbean.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1130929Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1617
 Staff, R. (2014). Ask RideApart: What Are Velocity Stacks and Throttle | RideApart. (online) RideApart. Available at: https://rideapart.com/articles/what-are-velocity-stacks-and-throttle-bodies (Accessed 20 Feb. 2016).
 Pulkrebek, W. (1997). Engineering fundamentals of the internal combustion engine, New Jersey: Prentice Hall
 Air Flow and Charge Motion Study of Engine Intake Port, (2016). (online) Available at: http://www.lnttechservices.com/media/28543/air-flow-and-charge-motion-study-of-engine-intake-port.pdf.
 Vauxhall XE (C20XE) Throttle bodies, s. (2016). Vauxhall XE (C20XE) | Throttle bodies, 45mm, QED/Jenvey direct to head. (online) Qedmotorsport.co.uk. Available at: http://qedmotorsport.co.uk/qed-shop/vauxhall-xe-c20xe/fuel-injection/throttle-bodies-qed-direct-to-head-various-types (Accessed 26 Apr. 2016).
 H M Niyaz, Prof A.S. Dhekane, Patil College of Engineering, Twin Helical Intake Port Design Optimization and Validation Using CFD Analysis (2016). (online) Available at: http://www.ijetae.com/files/Volume4Issue4/IJETAE_0414_81.pdf.
 Ferguson, C. (1986). Internal combustion engines, applied thermosciences. New York: Wiley, p.287.